StringKits (webfuse-core 1.0.2 API)

java.lang.Object
- cn.webfuse.core.kit.text.StringKits

```
public class StringKits
extends Object
```

构造器概要

构造器
构造器和说明

StringKits()

构造器
构造器和说明
`StringKits()`

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static com.google.common.base.Splitter`	`charsSplitter(String separatorChars)` 使用多个可选的char作为分割符, 还可以设置omitEmptyStrings,trimResults等配置设置后的Splitter进行重用，不要每次创建
`static String[]`	`commaDelimitedListToStringArray(String str)` Convert a comma delimited list (e.g., a row from a CSV file) into an array of strings.
`static String`	`deleteAny(String inString, String charsToDelete)` Delete any character in a given `String`.
`static String[]`	`delimitedListToStringArray(String str, String delimiter)` Take a `String` that is a delimited list and convert it into a `String` array.
`static String[]`	`delimitedListToStringArray(String str, String delimiter, String charsToDelete)` Take a `String` that is a delimited list and convert it into a `String` array.
`static boolean`	`endWith(CharSequence s, char c)` 判断字符串是否以字母结尾如果字符串为Null或空，返回false
`static String`	`getReplaceAll(String input, String regex, String replacement)` Replace every subsequence of the input sequence that matches the pattern with the given replacement string.
`static String`	`getReplaceFirst(String input, String regex, String replacement)` Replace the first subsequence of the input sequence that matches the regex with the given replacement string.
`static boolean`	`hasLength(String str)` Check that the given `String` is neither `null` nor of length 0.
`static boolean`	`hasText(CharSequence str)` Check whether the given `CharSequence` contains actual text.
`static boolean`	`hasText(String str)` Check whether the given `String` contains actual text.
`static String`	`lowerCamelToLowerUnderscore(String input)` 小写驼峰（lowerCamel） -> 小写下划线（lower_underscore）
`static String`	`lowerUnderscoreTolowerCamel(String input)` 小写下划线（lower_underscore） -> 小写驼峰（lowerCamel）
`static String`	`lowerUnderscoreToUpperCamel(String input)` 小写下划线（lower_underscore） -> 大写驼峰（UpperCamel）
`static String`	`placeholderFormat(String strPattern, Object... argArray)` 格式化字符串此方法只是简单将占位符 {} 按照顺序替换为参数如果想输出 {} 使用 \\转义 { 即可，如果想输出 {} 之前的 \ 使用双转义符 \\\\ 即可例：通常使用：format("this is {} for {}", "a", "b") -> this is a for b 转义{}： format("this is \\{} for {}", "a", "b") -> this is \{} for a 转义\： format("this is \\\\{} for {}", "a", "b") -> this is \a for b
`static String`	`removeEnd(String s, char c)` 如果结尾字符为c, 去除掉该字符.
`static String`	`replaceFirst(String s, char sub, char with)` String 有replace(char,char)，但缺少单独replace first/last的
`static String`	`replaceLast(String s, char sub, char with)` String 有replace(char,char)替换全部char，但缺少单独replace first/last
`static List<String>`	`split(String str, char separatorChar)` 高性能的Split，针对char的分隔符号，比JDK String自带的高效.
`static List<String>`	`split(String str, char separatorChar, int expectParts)` 高性能的Split，针对char的分隔符号，比JDK String自带的高效.
`static boolean`	`startWith(CharSequence s, char c)` 判断字符串是否以字母开头如果字符串为Null或空，返回false
`static String[]`	`tokenizeToStringArray(String str, String delimiters, boolean trimTokens, boolean ignoreEmptyTokens)` Tokenize the given `String` into a `String` array via a `StringTokenizer`.
`static String[]`	`toStringArray(Collection<String> collection)` Copy the given `Collection` into a `String` array.
`static String`	`trimAllWhitespace(String str)` Trim all whitespace from the given `String`: leading, trailing, and in between characters.
`static String`	`upperCamelToLowerUnderscore(String input)` 大写驼峰（UpperCamel）-> 小写下划线（lower_underscore）
`static int`	`utf8EncodedLength(CharSequence sequence)` 计算字符串被UTF8编码后的字节数 via guava

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - StringKits
```
public StringKits()
```
- 方法详细资料
  - split
```
public static List<String> split(String str,
                                 char separatorChar)
```
    高性能的Split，针对char的分隔符号，比JDK String自带的高效.
  - split
```
public static List<String> split(String str,
                                 char separatorChar,
                                 int expectParts)
```
    高性能的Split，针对char的分隔符号，比JDK String自带的高效.
    
    参数:
    
    expectParts - 预估分割后的List大小，初始化数据更精准
    
    返回:
    
    如果为null返回null, 如果为""返回空数组
  - charsSplitter
```
public static com.google.common.base.Splitter charsSplitter(String separatorChars)
```
    使用多个可选的char作为分割符, 还可以设置omitEmptyStrings,trimResults等配置
    设置后的Splitter进行重用，不要每次创建
    
    参数:
    
    separatorChars - 比如Unix/Windows的路径分割符 "/\\"
    
    另请参阅:
    
    Splitter
  - replaceFirst
```
public static String replaceFirst(String s,
                                  char sub,
                                  char with)
```
    String 有replace(char,char)，但缺少单独replace first/last的
  - replaceLast
```
public static String replaceLast(String s,
                                 char sub,
                                 char with)
```
    String 有replace(char,char)替换全部char，但缺少单独replace first/last
  - startWith
```
public static boolean startWith(CharSequence s,
                                char c)
```
    判断字符串是否以字母开头
    如果字符串为Null或空，返回false
  - endWith
```
public static boolean endWith(CharSequence s,
                              char c)
```
    判断字符串是否以字母结尾
    如果字符串为Null或空，返回false
  - removeEnd
```
public static String removeEnd(String s,
                               char c)
```
    如果结尾字符为c, 去除掉该字符.
  - utf8EncodedLength
```
public static int utf8EncodedLength(CharSequence sequence)
```
    计算字符串被UTF8编码后的字节数 via guava
  - lowerUnderscoreTolowerCamel
```
public static String lowerUnderscoreTolowerCamel(String input)
```
    小写下划线（lower_underscore） -> 小写驼峰（lowerCamel）
  - lowerUnderscoreToUpperCamel
```
public static String lowerUnderscoreToUpperCamel(String input)
```
    小写下划线（lower_underscore） -> 大写驼峰（UpperCamel）
  - lowerCamelToLowerUnderscore
```
public static String lowerCamelToLowerUnderscore(String input)
```
    小写驼峰（lowerCamel） -> 小写下划线（lower_underscore）
  - upperCamelToLowerUnderscore
```
public static String upperCamelToLowerUnderscore(String input)
```
    大写驼峰（UpperCamel）-> 小写下划线（lower_underscore）
  - getReplaceFirst
```
public static String getReplaceFirst(String input,
                                     String regex,
                                     String replacement)
```
    Replace the first subsequence of the input sequence that matches the regex with the given replacement string.
    
    参数:
    
    input - The input.
    
    regex - The regex.
    
    replacement - The replacement string.
    
    返回:
    
    the string constructed by replacing the first matching subsequence by the replacement string, substituting captured subsequences as needed
  - getReplaceAll
```
public static String getReplaceAll(String input,
                                   String regex,
                                   String replacement)
```
    Replace every subsequence of the input sequence that matches the pattern with the given replacement string.
    
    参数:
    
    input - The input.
    
    regex - The regex.
    
    replacement - The replacement string.
    
    返回:
    
    the string constructed by replacing each matching subsequence by the replacement string, substituting captured subsequences as needed
  - hasLength
```
public static boolean hasLength(String str)
```
    Check that the given String is neither null nor of length 0.
    Note: this method returns true for a String that purely consists of whitespace.
    
    参数:
    
    str - the String to check (may be null)
    
    返回:
    
    true if the String is not null and has length
  - hasText
```
public static boolean hasText(CharSequence str)
```
    Check whether the given CharSequence contains actual text.
    More specifically, this method returns true if the CharSequence is not null, its length is greater than 0, and it contains at least one non-whitespace character.
```
 StringUtils.hasText(null) = false
 StringUtils.hasText("") = false
 StringUtils.hasText(" ") = false
 StringUtils.hasText("12345") = true
 StringUtils.hasText(" 12345 ") = true
 
```
    参数:
    
    str - the CharSequence to check (may be null)
    
    返回:
    
    true if the CharSequence is not null, its length is greater than 0, and it does not contain whitespace only
    
    另请参阅:
    
    Character.isWhitespace(char)
  - hasText
```
public static boolean hasText(String str)
```
    Check whether the given String contains actual text.
    More specifically, this method returns true if the String is not null, its length is greater than 0, and it contains at least one non-whitespace character.
    
    参数:
    
    str - the String to check (may be null)
    
    返回:
    
    true if the String is not null, its length is greater than 0, and it does not contain whitespace only
    
    另请参阅:
    
    hasText(CharSequence)
  - trimAllWhitespace
```
public static String trimAllWhitespace(String str)
```
    Trim all whitespace from the given String: leading, trailing, and in between characters.
    
    参数:
    
    str - the String to check
    
    返回:
    
    the trimmed String
    
    另请参阅:
    
    Character.isWhitespace(char)
  - placeholderFormat
```
public static String placeholderFormat(String strPattern,
                                       Object... argArray)
```
    格式化字符串
    此方法只是简单将占位符 {} 按照顺序替换为参数
    如果想输出 {} 使用 \\转义 { 即可，如果想输出 {} 之前的 \ 使用双转义符 \\\\ 即可
    例：
    通常使用：format("this is {} for {}", "a", "b") -> this is a for b
    转义{}： format("this is \\{} for {}", "a", "b") -> this is \{} for a
    转义\： format("this is \\\\{} for {}", "a", "b") -> this is \a for b
    
    参数:
    
    strPattern - 字符串模板
    
    argArray - 参数列表
    
    返回:
    
    结果
  - commaDelimitedListToStringArray
```
public static String[] commaDelimitedListToStringArray(String str)
```
    Convert a comma delimited list (e.g., a row from a CSV file) into an array of strings.
    
    参数:
    
    str - the input String (potentially null or empty)
    
    返回:
    
    an array of strings, or the empty array in case of empty input
  - delimitedListToStringArray
```
public static String[] delimitedListToStringArray(String str,
                                                  String delimiter)
```
    Take a String that is a delimited list and convert it into a String array.
    A single delimiter may consist of more than one character, but it will still be considered as a single delimiter string, rather than as bunch of potential delimiter characters, in contrast to tokenizeToStringArray(java.lang.String, java.lang.String, boolean, boolean).
    
    参数:
    
    str - the input String (potentially null or empty)
    
    delimiter - the delimiter between elements (this is a single delimiter, rather than a bunch individual delimiter characters)
    
    返回:
    
    an array of the tokens in the list
    
    另请参阅:
    
    tokenizeToStringArray(java.lang.String, java.lang.String, boolean, boolean)
  - delimitedListToStringArray
```
public static String[] delimitedListToStringArray(String str,
                                                  String delimiter,
                                                  String charsToDelete)
```
    Take a String that is a delimited list and convert it into a String array.
    A single delimiter may consist of more than one character, but it will still be considered as a single delimiter string, rather than as bunch of potential delimiter characters, in contrast to tokenizeToStringArray(java.lang.String, java.lang.String, boolean, boolean).
    
    参数:
    
    str - the input String (potentially null or empty)
    
    delimiter - the delimiter between elements (this is a single delimiter, rather than a bunch individual delimiter characters)
    
    charsToDelete - a set of characters to delete; useful for deleting unwanted line breaks: e.g. "\r\n\f" will delete all new lines and line feeds in a String
    
    返回:
    
    an array of the tokens in the list
    
    另请参阅:
    
    tokenizeToStringArray(java.lang.String, java.lang.String, boolean, boolean)
  - deleteAny
```
public static String deleteAny(String inString,
                               String charsToDelete)
```
    Delete any character in a given String.
    
    参数:
    
    inString - the original String
    
    charsToDelete - a set of characters to delete. E.g. "az\n" will delete 'a's, 'z's and new lines.
    
    返回:
    
    the resulting String
  - toStringArray
```
public static String[] toStringArray(Collection<String> collection)
```
    Copy the given Collection into a String array.
    The Collection must contain String elements only.
    
    参数:
    
    collection - the Collection to copy (potentially null or empty)
    
    返回:
    
    the resulting String array
  - tokenizeToStringArray
```
public static String[] tokenizeToStringArray(String str,
                                             String delimiters,
                                             boolean trimTokens,
                                             boolean ignoreEmptyTokens)
```
    Tokenize the given String into a String array via a StringTokenizer.
    The given delimiters string can consist of any number of delimiter characters. Each of those characters can be used to separate tokens. A delimiter is always a single character; for multi-character delimiters, consider using delimitedListToStringArray(java.lang.String, java.lang.String).
    
    参数:
    
    str - the String to tokenize (potentially null or empty)
    
    delimiters - the delimiter characters, assembled as a String (each of the characters is individually considered as a delimiter)
    
    trimTokens - trim the tokens via String.trim()
    
    ignoreEmptyTokens - omit empty tokens from the result array (only applies to tokens that are empty after trimming; StringTokenizer will not consider subsequent delimiters as token in the first place).
    
    返回:
    
    an array of the tokens
    
    另请参阅:
    
    StringTokenizer, String.trim(), delimitedListToStringArray(java.lang.String, java.lang.String)

类 StringKits

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

StringKits

方法详细资料

split

split

charsSplitter

replaceFirst

replaceLast

startWith

endWith

removeEnd

utf8EncodedLength

lowerUnderscoreTolowerCamel

lowerUnderscoreToUpperCamel

lowerCamelToLowerUnderscore

upperCamelToLowerUnderscore

getReplaceFirst

getReplaceAll

hasLength

hasText

hasText

trimAllWhitespace

placeholderFormat

commaDelimitedListToStringArray

delimitedListToStringArray

delimitedListToStringArray

deleteAny

toStringArray

tokenizeToStringArray